Building codes usually limit the current carried by a no. 14 copper wire to 15 a. many household circuits are wired with this size wire. what is the drift velocity of the electrons in this case? the diameter of this wire is 1.6 mm. assume one conduction electron per atom in copper. the atomic weight of copper is 63.3 g/mol and its density is 8900 kg/m3. avogadro's number is 6.022 × 1023 molecules/mol and e = 1.60 × 10-19 c.

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan